php配置问题小结
在利用php+Apache+myslq进行编程的时候,经常有一个比较让人头疼的问题,就是配置php.ini文件。
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问题1: Fatal error: Call to undefined function mysql_connect() in...
先用打印出信息,然后再查看是否已经有MYSQL的相关选项.如果没有说明PHP.INI配置有问题.修改!
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编辑php.ini,寻找extension_dir,改为
extension_dir = "E:\Apache Software Foundation\php-5.2.5-Win32\ext"这样。注意用单个反斜线,注意整体用双引号装起来,
注意每个字母包括双引号冒号和空格都不要搞成全角了。然后记得检查你自己的那个目录下要确实有php_mysql.dll这个文件。
?最后在脚本里,注意每个字母都要是半角的。
还要注意启动PHP的方式,调用的要确实是你修改的这个php.ini
还要注意如果是APACHE+PHP的,改了php.ini之后最好重启动一下APACHE
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以上是在网上找到的一些参照方法,我使用的是appserv安装包,所以关于php.ini里面的配置基本已经预先被配置好了,不用再改动,除非你后来改动了,会显示以上红色部分的信息。 当然,如果确定没有改动什么依然出现上述问题,可以尝试按照提供的方法进行改动,基本就是去掉注释和路径的配置两个方面,如果这样还不行,就将e:\php\ext加入环境变量的path中,e:\php\是你安装php的目录。还不行,就重启一下电脑。
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?问题2: mysql_fetch_object(): supplied argument is not a valid MySQL result resource
?主要问题是mysql_fetch_object()函数里面的参数问题。多半是sql语句的语法问题。注意检查sql语句是否为空,语法格式是否正确
$userid=$_GET['userid']; $userid=trim($userid); $link=mysql_connect("localhost","root","root"); mysql_query("set names 'gbk'"); mysql_select_db(student); $sql="select * from stuinfo where userid='$userid'"; $result=mysql_query($sql); while($rs=mysql_fetch_object($result)){ $userid=$rs->userid; $password=$rs->password; $sex=$rs->sex; $city=$rs->city; $email=$rs->email; }
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HTTP request methods include GET, POST, PUT and DELETE, which are used to obtain, submit, update and delete resources respectively. 1. The GET method is used to obtain resources and is suitable for read operations. 2. The POST method is used to submit data and is often used to create new resources. 3. The PUT method is used to update resources and is suitable for complete updates. 4. The DELETE method is used to delete resources and is suitable for deletion operations.

HTTPS is a protocol that adds a security layer on the basis of HTTP, which mainly protects user privacy and data security through encrypted data. Its working principles include TLS handshake, certificate verification and encrypted communication. When implementing HTTPS, you need to pay attention to certificate management, performance impact and mixed content issues.


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